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  <title>Loads a font</title>
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  <div id="layout-content"><div id="function.ps-findfont" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ps_findfont</h1>
  <p class="verinfo">(PECL ps &gt;= 1.1.0)</p><p class="refpurpose"><span class="refname">ps_findfont</span> &mdash; <span class="dc-title">Loads a font</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.ps-findfont-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ps_findfont</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$psdoc</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$fontname</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code></span>
   [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$embed</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
  ] ) : <span class="type">int</span></div>

  <p class="para rdfs-comment">
   Loads a font for later use. Before text is output with a loaded font it
   must be set with <span class="function"><a href="ps_setfont.html" class="function">ps_setfont()</a></span>. This function needs the
   adobe font metric file in order to calculate the space used up by the
   characters. A font which is loaded within a page will only be available on
   that page. Fonts which are to be used in the complete document have to be
   loaded before the first call of <span class="function"><a href="ps_begin_page.html" class="function">ps_begin_page()</a></span>. Calling
   <span class="function"><strong>ps_findfont()</strong></span> between pages will make that font
   available for all following pages.
  </p>
  <p class="para">
   The name of the afm file must be
   <code class="parameter">fontname</code><em>.afm</em>. If the font
   shall be embedded the file
   <code class="parameter">fontname</code><em>.pfb</em> containing
   the font outline must be present as well.
  </p>
  <p class="para">
   Calling <span class="function"><strong>ps_findfont()</strong></span> before the first page requires
   to output the postscript header which includes the BoundingBox for
   the whole document. Usually the BoundingBox is set with the first call
   of <span class="function"><a href="ps_begin_page.html" class="function">ps_begin_page()</a></span> which now comes after
   <span class="function"><strong>ps_findfont()</strong></span>. Consequently the BoundingBox has not
   been set and a warning will be issued when <span class="function"><strong>ps_findfont()</strong></span>
   is called. In order to prevent this situation, one should call
   <span class="function"><a href="ps_set_parameter.html" class="function">ps_set_parameter()</a></span> to set the BoundingBox before
   <span class="function"><strong>ps_findfont()</strong></span> is called.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.ps-findfont-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">psdoc</code></dt>

     <dd>

      <p class="para">
       Resource identifier of the postscript file
       as returned by <span class="function"><a href="ps_new.html" class="function">ps_new()</a></span>.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">fontname</code></dt>

     <dd>

      <p class="para">
       The name of the font.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">encoding</code></dt>

     <dd>

      <p class="para">
       <span class="function"><strong>ps_findfont()</strong></span> will try to load the file passed in
       the parameter <code class="parameter">encoding</code>. Encoding files are of
       the same syntax as those used by <strong class="command">dvips(1)</strong>. They
       contain a font encoding vector (which is currently not used but must be
       present) and a list of extra ligatures to extend the list of ligatures
       derived from the afm file.
      </p>
      <p class="para">
       <code class="parameter">encoding</code> can be <strong><code>NULL</code></strong> or the empty string if
       the default encoding (TeXBase1) shall be used.
      </p>
      <p class="para">
       If the encoding is set to <em>builtin</em> then there
       will be no reencoding and the font specific encoding will be used. This
       is very useful with symbol fonts.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">embed</code></dt>

     <dd>

      <p class="para">
       If set to a value &gt;0 the font will be embedded into the document. This
       requires the font outline (.pfb file) to be present.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.ps-findfont-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the identifier of the font or zero in case of an error. The
   identifier is a positive number.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.ps-findfont-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="ps_begin_page.html" class="function" rel="rdfs-seeAlso">ps_begin_page()</a> - Start a new page</span></li>
    <li class="member"><span class="function"><a href="ps_setfont.html" class="function" rel="rdfs-seeAlso">ps_setfont()</a> - Sets font to use for following output</span></li>
   </ul>
  </p>
 </div>

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